Astrobe for RISC5 is a free unlimited Windows version of the Astrobe IDE that developers can use to edit and compile, embedded real-time Oberon applications. These can then be uploaded and executed on an FPGA RISC5 development system. The compiled applications produced by Astrobe can be executed on a minimal embedded version of the Project Oberon OS.

Other new features included since the Dec 2015 Astrobe / Arty release are:

* Supports the latest (March 2016) revision of the Oberon Language including numeric CASE statements.* Uses the latest Project Oberon source code* Updated Verilog code includes support for the Arty buttons and switches* Uses the Opus-2 MicroSD card adapter which was designed specifically for use with Project Oberon.